Posted text search system, posted text search device, posted text search method, and computer program

Abstract

Posted text search systems, methods, and programs acquire an expected travel route for a mobile body and determine whether a congestion factor facility, which is a facility that causes congestion, is located around the expected travel route. The systems, methods, and programs acquire, when it is determined that the congestion factor facility is located around the expected travel route, a closer intersecting road, which is a road that is located on the side of the mobile body with respect to the congestion factor facility and that intersects the expected travel route and acquire a name of the closer intersecting road as a search target name. The systems, methods, and programs set a search word from a character string of the acquired search target name and extract a posted text that corresponds to the set search word from texts posted on a computer network.

1 . A posted text search system characterized by comprising:
 a memory that stores a posted text search program; and   a processor that, when executing the stored program:
 acquires an expected travel route for a mobile body; 
 determines whether a congestion factor facility, which is a facility that causes congestion, is located around the expected travel route; 
 when it is determined that the congestion factor facility is located around the expected travel route, acquires a closer intersecting road, which is a road that is located on the side of the mobile body with respect to the congestion factor facility and that intersects the expected travel route; 
 acquires a name of the closer intersecting road as a search target name; 
 sets a search word from a character string of the acquired search target name; and 
 extracts a posted text that corresponds to the set search word from texts posted on a computer network. 
   
     
     
         2 . The posted text search system according to  claim 1 , wherein the processor, when executing the stored program:
 acquires a road that intersects the expected travel route on a side closest to the congestion factor facility as a first closer intersecting road;   acquires a road that intersects the expected travel route on a side closest to the congestion factor facility next to the first closer intersecting road as a second closer intersecting road; and   acquires a name of at least one of the first closer intersecting road and the second closer intersecting road as the search target name.   
     
     
         3 . The posted text search system according to  claim 2 , wherein the processor, when executing the stored program:
 acquires an arrangement interval between the first closer intersecting road and the second closer intersecting road; and   when the arrangement interval between the first closer intersecting road and the second closer intersecting road is equal to or more than a threshold, acquires a name of the first closer intersecting road as the search target name.   
     
     
         4 . The posted text search system according to  claim 3 , wherein the processor, when executing the stored program:
 acquires a road width of the first closer intersecting road and a road width of the second closer intersecting road; and   when the arrangement interval between the first closer intersecting road and the second closer intersecting road is less than the threshold, acquires a name of one of the first closer intersecting road and the second closer intersecting road that has a larger road width as the search target name.   
     
     
         5 . The posted text search system according to  claim 1 , wherein the processor, when executing the stored program:
 determines whether the congestion factor facility is located around the expected travel route and on a side of a lane in which the mobile body travels along the expected travel route.   
     
     
         6 . A posted text search system characterized by comprising:
 a memory that stores a posted text search program; and   a processor that, when executing the stored program:
 acquires an expected travel route for a mobile body; 
 acquires an entry intersecting road, which is a road that intersects the expected travel route and that a vehicle traveling along the expected travel route can enter from the expected travel route; 
 determines whether a congestion factor facility, which is a facility that causes congestion, is located around the entry intersecting road; 
 it is determined that the congestion factor facility is located around the entry intersecting road, acquires a closer intersecting road, which is a road that is located on the side of the mobile body with respect to an intersection between the expected travel route and the entry intersecting road and that intersects the expected travel route; 
 acquires a name of the closer intersecting road as a search target name; 
 sets a search word from a character string of the acquired search target name; and 
 extracts a posted text that corresponds to the set search word from texts posted on a computer network. 
   
     
     
         7 . The posted text search system according to  claim 6 , wherein the processor, when executing the stored program:
 the closer intersecting road acquisition means acquires a road that intersects the expected travel route on a side closest to the intersection as a first closer intersecting road, and acquires a road that intersects the expected travel route on a side closest to the intersection next to the first closer intersecting road as a second closer intersecting road; and   the search target name acquisition means acquires a name of at least one of the first closer intersecting road and the second closer intersecting road as the search target name.   
     
     
         8 . The posted text search system according to  claim 7 , wherein the processor, when executing the stored program:
 interval acquisition means for acquiring an arrangement interval between the first closer intersecting road and the second closer intersecting road, wherein   the search target name acquisition means acquires a name of the first closer intersecting road as the search target name in the case where the arrangement interval between the first closer intersecting road and the second closer intersecting road is equal to or more than a threshold.   
     
     
         9 . The posted text search system according to  claim 8 , wherein the processor, when executing the stored program:
 road width acquisition means for acquiring a road width of the first closer intersecting road and a road width of the second closer intersecting road, wherein   the search target name acquisition means acquires a name of one of the first closer intersecting road and the second closer intersecting road that has a larger road width as the search target name in the case where the arrangement interval between the first closer intersecting road and the second closer intersecting road is less than the threshold.   
     
     
         10 . The posted text search system according to  claim 6 , wherein the processor, when executing the stored program:
 the intersecting congestion facility determination means determines whether or not the congestion factor facility is located around the entry intersecting road and on a side of a lane with respect to the entry intersecting road, the lane in which a vehicle that has entered the entry intersecting road from the expected travel route travels.   
     
     
         11 . (canceled) 
     
     
         12 . A posted text search method comprising:
 acquiring an expected travel route for a mobile body;   determining whether a congestion factor facility, which is a facility that causes congestion, is located around the expected travel route;   acquiring, when it is determined that the congestion factor facility is located around the expected travel route, a closer intersecting road, which is a road that is located on the side of the mobile body with respect to the congestion factor facility and that intersects the expected travel route;   acquiring a name of the closer intersecting road as a search target name;   setting a search word from a character string of the acquired search target name; and   extracting a posted text that corresponds to the set search word from texts posted on a computer network.   
     
     
         13 . A computer-readable storage medium storing a computer-executable posted text search program comprising:
 instructions for acquiring an expected travel route for a mobile body;   instructions for determining whether a congestion factor facility, which is a facility that causes congestion, is located around the expected travel route;   instructions for acquiring, when it is determined that the congestion factor facility is located around the expected travel route, a closer intersecting road, which is a road that is located on the side of the mobile body with respect to the congestion factor facility and that intersects the expected travel route;   instructions for acquiring a name of the closer intersecting road as a search target name;   instructions for setting a search word from a character string of the acquired search target name; and   instructions for extracting a posted text that corresponds to the set search word from texts posted on a computer network.